US PATENT SUBCLASS 585 / 449
.~.~ Plural alkylation stages

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
446  DF  .~ By condensation of entire molecules or entire hydrocarbyl moieties thereof, e.g., alkylation, etc. {13}
449.~.~ Plural alkylation stages

DEFINITION

Classification: 585/449

Plural alkylation stages:

(under subclass 446) Subject matter in which the effluent from an aromatic alkylation reaction is sent to another aromatic alkylation reaction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

300+, for a process wherein two or more alkylation reactions are conducted in parallel.

323, for a process in which an aromatic alkylation reaction is preceded or followed by a conversion other than aromatic alkylation.